Prefix and postfix increment and decrement operator overloading doesn't work

[llvm-beanz]

With -HV 2021, the code below produces the diagnostic error: scalar, vector, or matrix expected.

If increment and decrement operators are expected to work we should fix that, if not, we should provide a more useful diagnostic.

struct Foo {
  int x;
  void operator++(int){
    x += 1;
  }

  void operator++(){
    x += 1;
  }
};

[numthreads(1, 1, 1)]
void main(uint tidx : SV_DispatchThreadId) {
  Foo A = {11};
  A++;
  ++A;
}

[llvm-beanz]

We get the same bad errors for the unary operators ~ and !.

[jaebaek]

Oops. I will take a look

[damyanp]

We've removed support for the offending operators in HLSL 2021. We should view this as a feature request for HLSL 202x.